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Cultivated-land change in Mu Us Sandy Land of China before and after the first-stage grain-for-green policy

Research in Cold and Arid Regions 2018年第4期10卷 347-353页

作者： Na Li ChangZhen Yan JiaLi Xie JianXia Ma Northwest Institute of Eco-Environment and Resources Chinese Academy of Sciences

Mu Us Sandy Land(MUSL) of China, as a typical eco-fragile and farming-pastoral transitional region, shows great vulnerability to disturbances from cultivation activity. In this region, the conflict between cultivation activity and environmental protection has not attracted great importance until the implementation of China's grain-for-green Policy(CGGP) since2000. Here, using Landsat5 TM/Landsat7 ETM+ images from 1990, 2000, and 2010, we monitor the cultivation activity and land-use/cover changes(LUCC) resulting from cultivation activity in the MUSL region. Based on the data from images, we developed a series of databases of cultivated activity-induced LUCC and use them to discuss comparatively the spatio-temporal evolution trends of cultivation activity before and after CGGP implementation. These results provide evidence for managers to evaluate the implementation effectiveness of governmental policy and the influence of cultivation activity on the ecological environment of the MUSL region.

关键词： Mu Us Sandy Land China's grain-for-green policy cultivated land land-use/cover change landsat

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How China's grain-for-green Project Contributes to Farmers' Income Growth

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China Economist 2018年第3期13卷 88-102页

作者： Wang Shu Yue Ximing School of Finance Renmin University of China Beijing China

Initially intended to prevent water and soil erosion, China＇s grain-for-green Project （GGP） also has had economic impacts on farmers＇incorne and employment. Based on the poverty monitoring survey data between 2006-2010 from National Bureau of Statistics （NBS）, this paper evaluates the GGP＇s policy effects with respect to farmers＇ income, non-agricultural employment and poverty alleviation. Our findings suggest that contributing to the GGP, farmers＇ income including GGP subsidies increased significantly compared with the pre-GGP level,＂ however, if GGP subsidies are not taken into account, the increase in farmers＇non-agricultural income after the GGP could only *** the income losses from farmland reduction, showing an insignificant effect. Second, there exist significant differences on employment tendency among GGP households. High-income households tend to engage in operation business in forestry, livestock and fishery activities, while medium-income families are more inclined to seek employment outside, and the differences attribute to the inter-group intrinsic characteristics. Lastly, the GGP＇s poverty alleviation effect varies with the difference in poverty standard. Overall the GGP＇s poverty alleviation effect is significant.

关键词： grain-for-green nonagricultural employment farmers' income growth propensity score matching (PSM) difference-in-differences (DID)

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